/* roulang page: index */
:root {
            --primary-bg: #0A2E1C;
            --secondary-bg: #123E25;
            --gold: #FFD700;
            --lucky-red: #D32F2F;
            --white: #FFFFFF;
            --pale-mint: #D1F2EB;
            --muted-text: #A8C7BC;
            --border-gold: rgba(255, 215, 0, 0.35);
            --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.15);
            --shadow-dark: 0 10px 30px rgba(0, 0, 0, 0.35);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --font-body: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
            --transition: 0.25s cubic-bezier(0.4, 0, 0.2, 1);
        }

        * {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        body {
            font-family: var(--font-body);
            background: var(--primary-bg);
            color: var(--white);
            line-height: 1.6;
            font-size: 16px;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        a {
            color: inherit;
            text-decoration: none;
            transition: color var(--transition);
        }

        a:hover, a:focus {
            color: var(--gold);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        button, .button {
            cursor: pointer;
            border: none;
            border-radius: var(--radius-sm);
            font-weight: 600;
            transition: all var(--transition);
            outline: none;
        }

        button:focus-visible, .button:focus-visible, a:focus-visible {
            outline: 2px solid var(--gold);
            outline-offset: 3px;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Header / Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 100;
            background: rgba(10, 46, 28, 0.92);
            backdrop-filter: blur(12px);
            -webkit-backdrop-filter: blur(12px);
            border-bottom: 1px solid var(--border-gold);
            padding: 12px 0;
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
        }

        .logo {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--gold);
            letter-spacing: -0.5px;
            line-height: 1.2;
            max-width: 260px;
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 24px;
            list-style: none;
        }

        .nav-links a {
            color: var(--pale-mint);
            font-weight: 500;
            font-size: 0.95rem;
            padding: 6px 0;
            position: relative;
            white-space: nowrap;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--gold);
            transition: width var(--transition);
        }

        .nav-links a:hover::after,
        .nav-links a.active::after {
            width: 100%;
        }

        .nav-links a.active {
            color: var(--gold);
        }

        .nav-cta {
            display: flex;
            align-items: center;
            gap: 12px;
        }

        .btn-login {
            background: transparent;
            color: var(--pale-mint);
            border: 1px solid var(--border-gold);
            padding: 10px 20px;
            border-radius: var(--radius-sm);
            font-weight: 600;
            font-size: 0.9rem;
            transition: all var(--transition);
        }

        .btn-login:hover {
            background: rgba(255, 215, 0, 0.1);
            color: var(--gold);
            border-color: var(--gold);
        }

        .btn-signup {
            background: var(--gold);
            color: var(--primary-bg);
            padding: 10px 24px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 0.9rem;
            box-shadow: var(--shadow-gold);
        }

        .btn-signup:hover {
            background: #FFE44D;
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(255, 215, 0, 0.3);
            color: var(--primary-bg);
        }

        /* Mobile menu toggle */
        .menu-toggle {
            display: none;
            background: transparent;
            border: 1px solid var(--border-gold);
            color: var(--gold);
            font-size: 1.4rem;
            padding: 8px 12px;
            border-radius: var(--radius-sm);
        }

        /* Hero Bento */
        .hero {
            padding: 140px 0 80px;
            position: relative;
            background: radial-gradient(ellipse at 20% 20%, rgba(255, 215, 0, 0.08) 0%, transparent 60%),
                        radial-gradient(ellipse at 80% 80%, rgba(18, 62, 37, 0.9) 0%, transparent 60%),
                        var(--primary-bg);
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(255, 215, 0, 0.06) 0%, transparent 70%);
            border-radius: 50%;
        }

        .bento-grid {
            display: grid;
            grid-template-columns: 1.6fr 1fr;
            grid-template-rows: auto auto;
            gap: 20px;
            position: relative;
            z-index: 2;
        }

        .bento-main {
            grid-row: span 2;
            background: linear-gradient(145deg, rgba(18, 62, 37, 0.9), rgba(10, 46, 28, 0.95));
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-lg);
            padding: 40px;
            display: flex;
            flex-direction: column;
            justify-content: center;
            box-shadow: var(--shadow-dark);
        }

        .bento-main .badge {
            display: inline-block;
            background: rgba(211, 47, 47, 0.85);
            color: var(--white);
            font-size: 0.8rem;
            font-weight: 700;
            padding: 6px 14px;
            border-radius: 20px;
            letter-spacing: 1px;
            text-transform: uppercase;
            margin-bottom: 20px;
            width: fit-content;
        }

        .bento-main h1 {
            font-size: 2.8rem;
            font-weight: 900;
            line-height: 1.2;
            margin-bottom: 20px;
            color: var(--white);
            letter-spacing: -0.5px;
        }

        .bento-main h1 .highlight {
            color: var(--gold);
        }

        .bento-main p {
            font-size: 1.05rem;
            color: var(--pale-mint);
            margin-bottom: 28px;
            max-width: 540px;
            line-height: 1.65;
        }

        .hero-cta-row {
            display: flex;
            flex-wrap: wrap;
            gap: 14px;
        }

        .btn-primary {
            background: var(--gold);
            color: var(--primary-bg);
            padding: 14px 30px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 1rem;
            box-shadow: var(--shadow-gold);
        }

        .btn-primary:hover {
            background: #FFE44D;
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(255, 215, 0, 0.35);
            color: var(--primary-bg);
        }

        .btn-secondary {
            background: transparent;
            color: var(--gold);
            border: 2px solid var(--gold);
            padding: 14px 28px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 1rem;
        }

        .btn-secondary:hover {
            background: rgba(255, 215, 0, 0.1);
            transform: translateY(-2px);
        }

        .bento-small {
            background: linear-gradient(145deg, rgba(18, 62, 37, 0.85), rgba(10, 46, 28, 0.9));
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            padding: 24px;
            display: flex;
            align-items: center;
            gap: 16px;
            box-shadow: var(--shadow-dark);
            transition: transform var(--transition), box-shadow var(--transition);
        }

        .bento-small:hover {
            transform: translateY(-4px);
            box-shadow: var(--shadow-gold);
        }

        .bento-icon {
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: rgba(255, 215, 0, 0.12);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.6rem;
            color: var(--gold);
            flex-shrink: 0;
        }

        .bento-small h3 {
            font-size: 1.05rem;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 4px;
        }

        .bento-small p {
            font-size: 0.88rem;
            color: var(--muted-text);
            margin: 0;
        }

        .bento-cta-bar {
            grid-column: 1 / -1;
            background: linear-gradient(90deg, rgba(211, 47, 47, 0.9), rgba(255, 215, 0, 0.15));
            border: 1px solid rgba(255, 215, 0, 0.4);
            border-radius: var(--radius-md);
            padding: 18px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 12px;
        }

        .bento-cta-bar p {
            margin: 0;
            font-weight: 600;
            color: var(--white);
            font-size: 0.95rem;
        }

        /* Section General */
        .section {
            padding: 70px 0;
        }

        .section-header {
            margin-bottom: 40px;
        }

        .section-header h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--white);
            margin-bottom: 12px;
            letter-spacing: -0.3px;
        }

        .section-header p {
            font-size: 1rem;
            color: var(--muted-text);
            max-width: 680px;
            line-height: 1.6;
        }

        .section-divider {
            width: 60px;
            height: 4px;
            background: var(--gold);
            border-radius: 2px;
            margin-bottom: 20px;
        }

        /* Group Play Section */
        .group-play-section {
            background: var(--secondary-bg);
            border-top: 1px solid var(--border-gold);
            border-bottom: 1px solid var(--border-gold);
        }

        .group-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: center;
        }

        .group-content h2 {
            font-size: 2rem;
            font-weight: 800;
            color: var(--white);
            margin-bottom: 16px;
        }

        .group-content p {
            color: var(--pale-mint);
            line-height: 1.7;
            margin-bottom: 20px;
        }

        .step-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .step-list li {
            display: flex;
            gap: 14px;
            align-items: flex-start;
            margin-bottom: 16px;
            color: var(--pale-mint);
        }

        .step-number {
            width: 32px;
            height: 32px;
            background: var(--gold);
            color: var(--primary-bg);
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            font-weight: 700;
            font-size: 0.9rem;
            flex-shrink: 0;
            margin-top: 2px;
        }

        .group-image {
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid var(--border-gold);
            box-shadow: var(--shadow-dark);
        }

        .group-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 350px;
        }

        /* Hot Group Orders */
        .hot-orders-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(280px, 1fr));
            gap: 20px;
        }

        .order-card {
            background: rgba(18, 62, 37, 0.7);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            padding: 24px;
            transition: all var(--transition);
            position: relative;
            overflow: hidden;
        }

        .order-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 4px;
            background: linear-gradient(90deg, var(--gold), var(--lucky-red));
        }

        .order-card:hover {
            transform: translateY(-6px);
            box-shadow: var(--shadow-gold);
            border-color: var(--gold);
        }

        .order-tag {
            display: inline-block;
            background: rgba(211, 47, 47, 0.8);
            color: var(--white);
            font-size: 0.75rem;
            font-weight: 700;
            padding: 4px 12px;
            border-radius: 12px;
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 12px;
        }

        .order-card h3 {
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 8px;
        }

        .order-card p {
            font-size: 0.9rem;
            color: var(--muted-text);
            margin-bottom: 16px;
        }

        .order-meta {
            display: flex;
            align-items: center;
            gap: 16px;
            font-size: 0.85rem;
            color: var(--gold);
            font-weight: 600;
        }

        /* News Section */
        .news-section {
            background: var(--primary-bg);
        }

        .news-layout {
            display: grid;
            grid-template-columns: 1.5fr 1fr;
            gap: 40px;
        }

        .news-list {
            display: flex;
            flex-direction: column;
            gap: 16px;
        }

        .news-item {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            padding: 18px 20px;
            background: rgba(18, 62, 37, 0.5);
            border: 1px solid rgba(255, 215, 0, 0.15);
            border-radius: var(--radius-sm);
            transition: all var(--transition);
        }

        .news-item:hover {
            border-color: var(--gold);
            background: rgba(18, 62, 37, 0.8);
            transform: translateX(4px);
        }

        .news-item-info h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 4px;
        }

        .news-item-info p {
            font-size: 0.85rem;
            color: var(--muted-text);
            margin: 0;
        }

        .news-date {
            font-size: 0.8rem;
            color: var(--gold);
            white-space: nowrap;
            font-weight: 600;
        }

        .news-sidebar {
            background: rgba(18, 62, 37, 0.6);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            padding: 28px;
            height: fit-content;
        }

        .news-sidebar h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--gold);
            margin-bottom: 16px;
        }

        .sidebar-item {
            padding: 14px 0;
            border-bottom: 1px solid rgba(255, 215, 0, 0.1);
        }

        .sidebar-item:last-child {
            border-bottom: none;
        }

        .sidebar-item a {
            font-size: 0.95rem;
            color: var(--pale-mint);
            font-weight: 500;
            display: block;
            line-height: 1.4;
        }

        .sidebar-item a:hover {
            color: var(--gold);
        }

        /* Promo Wall */
        .promo-section {
            background: linear-gradient(135deg, var(--secondary-bg), var(--primary-bg));
            border-top: 1px solid var(--border-gold);
            border-bottom: 1px solid var(--border-gold);
        }

        .promo-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(240px, 1fr));
            gap: 20px;
        }

        .promo-card {
            background: linear-gradient(145deg, rgba(255, 215, 0, 0.08), rgba(18, 62, 37, 0.8));
            border: 2px dashed var(--gold);
            border-radius: var(--radius-md);
            padding: 28px 22px;
            text-align: center;
            transition: all var(--transition);
            position: relative;
        }

        .promo-card:hover {
            transform: scale(1.03);
            border-style: solid;
            box-shadow: var(--shadow-gold);
        }

        .promo-card .promo-icon {
            font-size: 2.4rem;
            color: var(--gold);
            margin-bottom: 14px;
        }

        .promo-card h3 {
            font-size: 1.2rem;
            font-weight: 800;
            color: var(--gold);
            margin-bottom: 8px;
        }

        .promo-card p {
            font-size: 0.9rem;
            color: var(--pale-mint);
            margin-bottom: 16px;
        }

        .promo-card .btn-promo {
            background: var(--gold);
            color: var(--primary-bg);
            padding: 10px 22px;
            border-radius: var(--radius-sm);
            font-weight: 700;
            font-size: 0.9rem;
            display: inline-block;
        }

        .promo-card .btn-promo:hover {
            background: #FFE44D;
            transform: translateY(-2px);
        }

        /* Rules Section */
        .rules-section {
            background: var(--primary-bg);
        }

        .rules-grid {
            display: grid;
            grid-template-columns: repeat(auto-fill, minmax(300px, 1fr));
            gap: 24px;
        }

        .rule-card {
            background: rgba(18, 62, 37, 0.6);
            border: 1px solid rgba(255, 215, 0, 0.2);
            border-radius: var(--radius-md);
            padding: 28px;
            transition: all var(--transition);
        }

        .rule-card:hover {
            border-color: var(--gold);
            box-shadow: var(--shadow-dark);
        }

        .rule-card .rule-number {
            font-size: 2.6rem;
            font-weight: 900;
            color: rgba(255, 215, 0, 0.25);
            line-height: 1;
            margin-bottom: 12px;
        }

        .rule-card h3 {
            font-size: 1.2rem;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 10px;
        }

        .rule-card p {
            font-size: 0.92rem;
            color: var(--muted-text);
            line-height: 1.6;
        }

        /* FAQ */
        .faq-section {
            background: var(--secondary-bg);
            border-top: 1px solid var(--border-gold);
        }

        .faq-list {
            max-width: 800px;
            margin: 0 auto;
        }

        .faq-item {
            background: rgba(10, 46, 28, 0.6);
            border: 1px solid rgba(255, 215, 0, 0.2);
            border-radius: var(--radius-sm);
            margin-bottom: 14px;
            overflow: hidden;
            transition: all var(--transition);
        }

        .faq-item:hover {
            border-color: var(--gold);
        }

        .faq-question {
            padding: 18px 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            cursor: pointer;
            font-weight: 700;
            color: var(--white);
            font-size: 1rem;
            user-select: none;
        }

        .faq-question .fa-chevron-down {
            color: var(--gold);
            transition: transform var(--transition);
        }

        .faq-item.open .fa-chevron-down {
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.35s ease;
            padding: 0 24px;
            color: var(--pale-mint);
            font-size: 0.95rem;
            line-height: 1.6;
        }

        .faq-item.open .faq-answer {
            max-height: 300px;
            padding-bottom: 20px;
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, rgba(211, 47, 47, 0.15), rgba(255, 215, 0, 0.08));
            padding: 80px 0;
            text-align: center;
            border-top: 1px solid var(--border-gold);
        }

        .cta-section h2 {
            font-size: 2.2rem;
            font-weight: 900;
            color: var(--white);
            margin-bottom: 16px;
        }

        .cta-section p {
            font-size: 1.05rem;
            color: var(--pale-mint);
            max-width: 600px;
            margin: 0 auto 28px;
            line-height: 1.65;
        }

        /* Footer */
        .site-footer {
            background: #062315;
            border-top: 1px solid var(--border-gold);
            padding: 50px 0 30px;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 30px;
        }

        .footer-brand h3 {
            font-size: 1.3rem;
            font-weight: 800;
            color: var(--gold);
            margin-bottom: 12px;
        }

        .footer-brand p {
            font-size: 0.9rem;
            color: var(--muted-text);
            line-height: 1.6;
        }

        .footer-links h4 {
            font-size: 1rem;
            font-weight: 700;
            color: var(--white);
            margin-bottom: 14px;
        }

        .footer-links ul {
            list-style: none;
            padding: 0;
        }

        .footer-links li {
            margin-bottom: 8px;
        }

        .footer-links a {
            font-size: 0.9rem;
            color: var(--muted-text);
        }

        .footer-links a:hover {
            color: var(--gold);
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 215, 0, 0.1);
            padding-top: 20px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
        }

        .footer-bottom p {
            font-size: 0.85rem;
            color: var(--muted-text);
            margin: 0;
        }

        .badge-18 {
            display: inline-block;
            background: var(--lucky-red);
            color: var(--white);
            font-weight: 800;
            padding: 4px 10px;
            border-radius: 4px;
            font-size: 0.8rem;
        }

        .badge-license {
            display: inline-block;
            border: 1px solid var(--gold);
            color: var(--gold);
            font-weight: 600;
            padding: 4px 12px;
            border-radius: 4px;
            font-size: 0.75rem;
        }

        /* FAB */
        .fab {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 50;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: linear-gradient(145deg, #1a1a1a, #0A0A0A);
            border: 3px solid var(--gold);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            color: var(--gold);
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
            cursor: pointer;
            transition: all var(--transition);
            opacity: 0.7;
            animation: float 3s ease-in-out infinite;
            text-decoration: none;
        }

        .fab::after {
            content: '';
            position: absolute;
            top: 2px;
            right: 2px;
            width: 12px;
            height: 12px;
            background: #D32F2F;
            border-radius: 50%;
            border: 2px solid #0A0A0A;
            animation: blink 1.5s ease-in-out infinite;
        }

        .fab:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 8px 30px rgba(255, 215, 0, 0.5);
            color: var(--gold);
        }

        @keyframes float {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-8px); }
        }

        @keyframes blink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .bento-grid {
                grid-template-columns: 1fr;
            }
            .bento-main {
                grid-row: auto;
            }
            .bento-cta-bar {
                grid-column: auto;
            }
            .group-grid {
                grid-template-columns: 1fr;
                gap: 30px;
            }
            .news-layout {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .nav-links {
                display: none;
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: rgba(10, 46, 28, 0.98);
                flex-direction: column;
                padding: 20px;
                gap: 16px;
                border-bottom: 1px solid var(--border-gold);
            }
            .nav-links.open {
                display: flex;
            }
            .menu-toggle {
                display: block;
            }
            .nav-cta {
                gap: 8px;
            }
            .btn-login, .btn-signup {
                padding: 8px 14px;
                font-size: 0.8rem;
            }
            .hero {
                padding: 110px 0 50px;
            }
            .bento-main {
                padding: 24px;
            }
            .bento-main h1 {
                font-size: 1.9rem;
            }
            .section {
                padding: 50px 0;
            }
            .section-header h2 {
                font-size: 1.6rem;
            }
            .hot-orders-grid {
                grid-template-columns: 1fr;
            }
            .promo-grid {
                grid-template-columns: 1fr 1fr;
            }
            .rules-grid {
                grid-template-columns: 1fr;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }
            .fab {
                width: 48px;
                height: 48px;
                font-size: 1.2rem;
                bottom: 80px;
                left: 12px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }
            .logo {
                font-size: 1rem;
                max-width: 180px;
            }
            .btn-login, .btn-signup {
                padding: 6px 10px;
                font-size: 0.7rem;
            }
            .bento-main h1 {
                font-size: 1.5rem;
            }
            .bento-main p {
                font-size: 0.9rem;
            }
            .bento-small {
                padding: 16px;
            }
            .bento-icon {
                width: 40px;
                height: 40px;
                font-size: 1.2rem;
            }
            .promo-grid {
                grid-template-columns: 1fr;
            }
            .news-item {
                flex-direction: column;
                align-items: flex-start;
            }
            .cta-section h2 {
                font-size: 1.6rem;
            }
        }

/* roulang page: category1 */
:root {
            --primary-bg: #0A2E1C;
            --primary-bg-deep: #123E25;
            --primary-bg-darker: #062315;
            --accent-gold: #FFD700;
            --accent-red: #D32F2F;
            --accent-amber: #FF9F00;
            --text-white: #FFFFFF;
            --text-mint: #D1F2EB;
            --text-gold: #FEF08A;
            --border-gold: rgba(255, 215, 0, 0.4);
            --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.15);
            --shadow-card: 0 10px 30px rgba(0, 0, 0, 0.35);
            --radius-sm: 10px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --spacing-xs: 8px;
            --spacing-sm: 16px;
            --spacing-md: 32px;
            --spacing-lg: 56px;
            --spacing-xl: 80px;
            --font-body: 'Segoe UI', 'Helvetica Neue', Arial, sans-serif;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: var(--font-body);
            background: var(--primary-bg);
            color: var(--text-white);
            line-height: 1.65;
            overflow-x: hidden;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }

        button {
            cursor: pointer;
            font-family: inherit;
            border: none;
            background: none;
            transition: var(--transition);
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 var(--spacing-sm);
        }

        /* Header & Navigation */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(10, 46, 28, 0.95);
            backdrop-filter: blur(20px);
            -webkit-backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(255, 215, 0, 0.2);
            padding: 0;
            height: 72px;
            display: flex;
            align-items: center;
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: var(--spacing-sm);
            width: 100%;
            flex-wrap: nowrap;
        }

        .logo {
            font-size: 1.35rem;
            font-weight: 800;
            color: var(--accent-gold);
            letter-spacing: -0.5px;
            white-space: nowrap;
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .logo i {
            font-size: 1.5rem;
            color: var(--accent-gold);
        }

        .nav-links {
            list-style: none;
            display: flex;
            align-items: center;
            gap: 6px;
            margin: 0;
            flex: 1;
            justify-content: center;
        }

        .nav-links li a {
            display: block;
            padding: 10px 16px;
            color: var(--text-mint);
            font-weight: 600;
            font-size: 0.92rem;
            border-radius: 30px;
            white-space: nowrap;
            position: relative;
            transition: var(--transition);
        }

        .nav-links li a:hover,
        .nav-links li a:focus {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.08);
        }

        .nav-links li a.active {
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.12);
        }

        .nav-links li a.active::after {
            content: '';
            position: absolute;
            bottom: 4px;
            left: 50%;
            transform: translateX(-50%);
            width: 20px;
            height: 3px;
            border-radius: 2px;
            background: var(--accent-gold);
        }

        .nav-cta {
            display: flex;
            align-items: center;
            gap: 10px;
            white-space: nowrap;
        }

        .btn-login {
            background: transparent;
            color: var(--text-mint);
            border: 1px solid rgba(255, 215, 0, 0.4);
            padding: 9px 18px;
            border-radius: 30px;
            font-weight: 700;
            font-size: 0.9rem;
            transition: var(--transition);
        }

        .btn-login:hover,
        .btn-login:focus {
            background: rgba(255, 215, 0, 0.1);
            color: var(--accent-gold);
            border-color: var(--accent-gold);
        }

        .btn-signup {
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
            color: var(--primary-bg-deep);
            padding: 10px 22px;
            border-radius: 30px;
            font-weight: 800;
            font-size: 0.9rem;
            box-shadow: 0 4px 15px rgba(255, 215, 0, 0.3);
            transition: var(--transition);
        }

        .btn-signup:hover,
        .btn-signup:focus {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(255, 215, 0, 0.45);
            background: linear-gradient(135deg, #FFE44D, #FFB300);
            color: var(--primary-bg-deep);
        }

        .menu-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--accent-gold);
            font-size: 1.6rem;
            padding: 8px;
            line-height: 1;
        }

        /* FAB */
        .fab-left {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 999;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: radial-gradient(circle at 30% 30%, #2C2C2C, #1A1A1A);
            border: 2px solid var(--accent-gold);
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.35);
            opacity: 0.7;
            transition: var(--transition);
            animation: floatBreath 3s ease-in-out infinite;
        }

        .fab-left:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 8px 30px rgba(255, 215, 0, 0.5);
        }

        .fab-left:active {
            transform: scale(0.95) translateY(2px);
        }

        .fab-left i {
            font-size: 1.6rem;
            color: var(--accent-gold);
        }

        .fab-left .notification-dot {
            position: absolute;
            top: 2px;
            right: 2px;
            width: 12px;
            height: 12px;
            border-radius: 50%;
            background: #FF0000;
            border: 2px solid #1A1A1A;
            animation: blinkDot 1.5s ease-in-out infinite;
        }

        @keyframes floatBreath {
            0%, 100% { transform: translateY(0); }
            50% { transform: translateY(-6px); }
        }

        @keyframes blinkDot {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }

        /* Hero Section */
        .hero {
            position: relative;
            padding: 140px 0 80px;
            background: linear-gradient(160deg, var(--primary-bg-deep) 0%, var(--primary-bg) 45%, var(--primary-bg-darker) 100%);
            min-height: 600px;
            display: flex;
            align-items: center;
            overflow: hidden;
        }

        .hero::before {
            content: '';
            position: absolute;
            inset: 0;
            background: url('/assets/images/backpic/back-1.jpg') center/cover no-repeat;
            opacity: 0.15;
            z-index: 0;
        }

        .hero::after {
            content: '';
            position: absolute;
            inset: 0;
            background: radial-gradient(ellipse at center, transparent 30%, var(--primary-bg) 100%);
            z-index: 1;
        }

        .hero-content {
            position: relative;
            z-index: 2;
            display: grid;
            grid-template-columns: 1.1fr 0.9fr;
            gap: 48px;
            align-items: center;
        }

        .hero-text {
            text-align: left;
        }

        .hero-badge {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            background: rgba(255, 215, 0, 0.12);
            border: 1px solid var(--border-gold);
            color: var(--accent-gold);
            padding: 8px 16px;
            border-radius: 30px;
            font-size: 0.85rem;
            font-weight: 700;
            margin-bottom: var(--spacing-sm);
            letter-spacing: 0.5px;
        }

        .hero h1 {
            font-size: 3rem;
            font-weight: 900;
            line-height: 1.2;
            margin-bottom: var(--spacing-sm);
            color: var(--text-white);
            letter-spacing: -1px;
        }

        .hero h1 .highlight {
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero p {
            font-size: 1.15rem;
            color: var(--text-mint);
            margin-bottom: var(--spacing-md);
            max-width: 520px;
            line-height: 1.7;
        }

        .hero-actions {
            display: flex;
            gap: 14px;
            flex-wrap: wrap;
            align-items: center;
        }

        .btn-primary {
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
            color: var(--primary-bg-deep);
            padding: 14px 32px;
            border-radius: 40px;
            font-weight: 800;
            font-size: 1rem;
            box-shadow: 0 8px 25px rgba(255, 215, 0, 0.35);
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

        .btn-primary:hover,
        .btn-primary:focus {
            transform: translateY(-3px);
            box-shadow: 0 12px 35px rgba(255, 215, 0, 0.5);
            background: linear-gradient(135deg, #FFE44D, #FFB300);
            color: var(--primary-bg-deep);
        }

        .btn-secondary {
            background: transparent;
            color: var(--text-mint);
            border: 1px solid rgba(255, 215, 0, 0.4);
            padding: 13px 28px;
            border-radius: 40px;
            font-weight: 700;
            font-size: 1rem;
            transition: var(--transition);
            display: inline-flex;
            align-items: center;
            gap: 10px;
        }

        .btn-secondary:hover,
        .btn-secondary:focus {
            background: rgba(255, 215, 0, 0.1);
            color: var(--accent-gold);
            border-color: var(--accent-gold);
        }

        .hero-visual {
            position: relative;
            z-index: 2;
            display: flex;
            justify-content: center;
            align-items: center;
        }

        .hero-img-wrapper {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            box-shadow: 0 20px 60px rgba(0, 0, 0, 0.5);
            border: 2px solid var(--border-gold);
            max-width: 480px;
            width: 100%;
        }

        .hero-img-wrapper img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }

        .hero-img-overlay {
            position: absolute;
            inset: 0;
            background: linear-gradient(180deg, transparent 40%, rgba(6, 35, 21, 0.9) 100%);
            display: flex;
            align-items: flex-end;
            padding: 20px;
        }

        .hero-img-overlay span {
            color: var(--accent-gold);
            font-weight: 800;
            font-size: 1.1rem;
            text-shadow: 0 2px 10px rgba(0, 0, 0, 0.7);
        }

        /* Section Common */
        .section {
            padding: var(--spacing-xl) 0;
        }

        .section-header {
            margin-bottom: var(--spacing-lg);
            text-align: left;
        }

        .section-header h2 {
            font-size: 2.2rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: var(--spacing-xs);
            letter-spacing: -0.5px;
            position: relative;
            padding-bottom: 14px;
        }

        .section-header h2::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 60px;
            height: 4px;
            border-radius: 2px;
            background: linear-gradient(90deg, var(--accent-gold), var(--accent-amber));
        }

        .section-header p {
            font-size: 1.05rem;
            color: var(--text-mint);
            max-width: 680px;
            margin-top: var(--spacing-xs);
        }

        /* Rules Detail Section */
        .rules-detail {
            background: var(--primary-bg-deep);
        }

        .rules-layout {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: start;
        }

        .rules-text {
            text-align: left;
        }

        .rules-text h3 {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--accent-gold);
            margin-bottom: var(--spacing-xs);
            margin-top: var(--spacing-sm);
        }

        .rules-text p {
            color: var(--text-mint);
            margin-bottom: var(--spacing-sm);
            font-size: 1rem;
            line-height: 1.7;
        }

        .rules-text ul {
            list-style: none;
            padding: 0;
            margin: var(--spacing-xs) 0 var(--spacing-sm);
        }

        .rules-text ul li {
            padding: 10px 0 10px 30px;
            position: relative;
            color: var(--text-mint);
            border-bottom: 1px solid rgba(255, 215, 0, 0.08);
            font-size: 0.98rem;
        }

        .rules-text ul li::before {
            content: '✔';
            position: absolute;
            left: 0;
            color: var(--accent-gold);
            font-weight: 700;
        }

        .rules-image {
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-card);
            border: 1px solid var(--border-gold);
            position: sticky;
            top: 100px;
        }

        .rules-image img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }

        /* Score Table */
        .score-table-section {
            background: var(--primary-bg-darker);
        }

        .score-table-wrapper {
            overflow-x: auto;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-gold);
            box-shadow: var(--shadow-card);
            background: rgba(18, 62, 37, 0.6);
        }

        .score-table {
            width: 100%;
            border-collapse: collapse;
            margin: 0;
            min-width: 600px;
        }

        .score-table th {
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
            color: var(--primary-bg-deep);
            font-weight: 800;
            padding: 16px 20px;
            text-align: left;
            font-size: 0.95rem;
        }

        .score-table td {
            padding: 14px 20px;
            color: var(--text-mint);
            border-bottom: 1px solid rgba(255, 215, 0, 0.1);
            font-size: 0.95rem;
        }

        .score-table tr:last-child td {
            border-bottom: none;
        }

        .score-table tr:hover td {
            background: rgba(255, 215, 0, 0.05);
        }

        .score-table .score-highlight {
            color: var(--accent-gold);
            font-weight: 700;
        }

        /* Steps / Flow */
        .steps-section {
            background: var(--primary-bg);
        }

        .steps-grid {
            display: grid;
            grid-template-columns: repeat(4, 1fr);
            gap: 20px;
            margin-top: var(--spacing-md);
        }

        .step-item {
            background: rgba(18, 62, 37, 0.5);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            padding: 28px 22px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .step-item::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 4px;
            height: 100%;
            background: linear-gradient(180deg, var(--accent-gold), var(--accent-amber));
        }

        .step-item:hover {
            transform: translateY(-5px);
            box-shadow: var(--shadow-gold);
            border-color: var(--accent-gold);
        }

        .step-number {
            font-size: 2.8rem;
            font-weight: 900;
            color: var(--accent-gold);
            opacity: 0.25;
            line-height: 1;
            margin-bottom: 10px;
        }

        .step-item h3 {
            font-size: 1.1rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 8px;
        }

        .step-item p {
            font-size: 0.9rem;
            color: var(--text-mint);
            line-height: 1.6;
            margin: 0;
        }

        /* Tips Section */
        .tips-section {
            background: var(--primary-bg-deep);
        }

        .tips-grid {
            display: grid;
            grid-template-columns: repeat(2, 1fr);
            gap: 24px;
            margin-top: var(--spacing-md);
        }

        .tip-card {
            background: rgba(18, 62, 37, 0.5);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-md);
            padding: 26px;
            transition: var(--transition);
            display: flex;
            gap: 16px;
            align-items: flex-start;
        }

        .tip-card:hover {
            transform: translateY(-3px);
            box-shadow: var(--shadow-gold);
            border-color: var(--accent-gold);
        }

        .tip-icon {
            width: 48px;
            height: 48px;
            min-width: 48px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-gold), var(--accent-amber));
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--primary-bg-deep);
            font-size: 1.3rem;
        }

        .tip-card h3 {
            font-size: 1.05rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 6px;
        }

        .tip-card p {
            font-size: 0.92rem;
            color: var(--text-mint);
            line-height: 1.6;
            margin: 0;
        }

        /* FAQ */
        .faq-section {
            background: var(--primary-bg-darker);
        }

        .faq-list {
            margin-top: var(--spacing-md);
            max-width: 800px;
        }

        .faq-item {
            background: rgba(18, 62, 37, 0.4);
            border: 1px solid var(--border-gold);
            border-radius: var(--radius-sm);
            margin-bottom: 14px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: var(--accent-gold);
        }

        .faq-question {
            width: 100%;
            padding: 18px 24px;
            display: flex;
            justify-content: space-between;
            align-items: center;
            color: var(--text-white);
            font-weight: 700;
            font-size: 1rem;
            text-align: left;
            background: none;
            border: none;
            cursor: pointer;
            transition: var(--transition);
        }

        .faq-question:hover {
            color: var(--accent-gold);
        }

        .faq-question i {
            color: var(--accent-gold);
            transition: var(--transition);
            font-size: 1rem;
        }

        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
            padding: 0 24px;
        }

        .faq-item.active .faq-answer {
            max-height: 300px;
            padding: 0 24px 20px;
        }

        .faq-answer p {
            color: var(--text-mint);
            font-size: 0.95rem;
            line-height: 1.7;
            margin: 0;
        }

        /* CTA Section */
        .cta-section {
            background: linear-gradient(135deg, var(--primary-bg-deep), var(--primary-bg));
            padding: var(--spacing-xl) 0;
            text-align: center;
            position: relative;
            overflow: hidden;
        }

        .cta-section::before {
            content: '';
            position: absolute;
            top: -50%;
            left: -50%;
            width: 200%;
            height: 200%;
            background: radial-gradient(circle at center, rgba(255, 215, 0, 0.08) 0%, transparent 60%);
            animation: pulseGlow 8s ease-in-out infinite;
        }

        @keyframes pulseGlow {
            0%, 100% { opacity: 0.5; }
            50% { opacity: 1; }
        }

        .cta-content {
            position: relative;
            z-index: 2;
            max-width: 700px;
            margin: 0 auto;
        }

        .cta-content h2 {
            font-size: 2.4rem;
            font-weight: 900;
            color: var(--text-white);
            margin-bottom: var(--spacing-sm);
            letter-spacing: -0.5px;
        }

        .cta-content p {
            font-size: 1.1rem;
            color: var(--text-mint);
            margin-bottom: var(--spacing-md);
        }

        .cta-buttons {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        /* Footer */
        .site-footer {
            background: var(--primary-bg-darker);
            border-top: 2px solid var(--border-gold);
            padding: var(--spacing-lg) 0 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 1.5fr 1fr 1fr;
            gap: 40px;
            padding-bottom: var(--spacing-lg);
        }

        .footer-brand h3 {
            font-size: 1.5rem;
            font-weight: 800;
            color: var(--accent-gold);
            margin-bottom: 12px;
        }

        .footer-brand p {
            color: var(--text-mint);
            font-size: 0.92rem;
            line-height: 1.7;
        }

        .footer-links h4 {
            font-size: 1rem;
            font-weight: 800;
            color: var(--text-white);
            margin-bottom: 16px;
        }

        .footer-links ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-links ul li {
            margin-bottom: 10px;
        }

        .footer-links ul li a {
            color: var(--text-mint);
            font-size: 0.92rem;
            transition: var(--transition);
        }

        .footer-links ul li a:hover {
            color: var(--accent-gold);
            padding-left: 5px;
        }

        .footer-bottom {
            border-top: 1px solid rgba(255, 215, 0, 0.15);
            padding: 20px 0;
            display: flex;
            justify-content: space-between;
            align-items: center;
            flex-wrap: wrap;
            gap: 12px;
        }

        .footer-bottom p {
            color: var(--text-mint);
            font-size: 0.85rem;
            margin: 0;
        }

        .badge-18 {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 32px;
            height: 32px;
            border-radius: 50%;
            background: var(--accent-red);
            color: white;
            font-weight: 900;
            font-size: 0.8rem;
            border: 2px solid white;
        }

        .badge-license {
            display: inline-block;
            padding: 6px 14px;
            border-radius: 20px;
            background: rgba(255, 215, 0, 0.1);
            border: 1px solid var(--border-gold);
            color: var(--accent-gold);
            font-size: 0.78rem;
            font-weight: 700;
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-content {
                grid-template-columns: 1fr;
                gap: 32px;
            }

            .hero h1 {
                font-size: 2.4rem;
            }

            .hero-visual {
                order: -1;
            }

            .hero-img-wrapper {
                max-width: 400px;
                margin: 0 auto;
            }

            .steps-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .rules-layout {
                grid-template-columns: 1fr;
            }

            .rules-image {
                position: static;
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }
        }

        @media (max-width: 768px) {
            .site-header {
                height: 64px;
            }

            .nav-links {
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: var(--primary-bg-deep);
                flex-direction: column;
                padding: 20px;
                gap: 4px;
                border-bottom: 2px solid var(--border-gold);
                transform: translateY(-150%);
                transition: transform 0.4s ease;
                z-index: 999;
                align-items: stretch;
            }

            .nav-links.open {
                transform: translateY(0);
            }

            .nav-links li a {
                padding: 12px 20px;
                font-size: 1rem;
                border-radius: 10px;
            }

            .nav-links li a.active::after {
                display: none;
            }

            .menu-toggle {
                display: block;
                order: 3;
            }

            .nav-cta {
                margin-left: auto;
            }

            .btn-login, .btn-signup {
                padding: 8px 14px;
                font-size: 0.8rem;
            }

            .logo {
                font-size: 1.1rem;
            }

            .hero {
                padding: 100px 0 60px;
                min-height: auto;
            }

            .hero h1 {
                font-size: 2rem;
            }

            .hero p {
                font-size: 1rem;
            }

            .section {
                padding: var(--spacing-lg) 0;
            }

            .section-header h2 {
                font-size: 1.7rem;
            }

            .steps-grid {
                grid-template-columns: 1fr;
                gap: 14px;
            }

            .tips-grid {
                grid-template-columns: 1fr;
                gap: 16px;
            }

            .cta-content h2 {
                font-size: 1.8rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .fab-left {
                width: 48px;
                height: 48px;
                left: 12px;
                bottom: 80px;
            }

            .fab-left i {
                font-size: 1.3rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 12px;
            }

            .hero h1 {
                font-size: 1.7rem;
            }

            .hero-actions {
                flex-direction: column;
                width: 100%;
            }

            .btn-primary, .btn-secondary {
                width: 100%;
                justify-content: center;
                text-align: center;
            }

            .section-header h2 {
                font-size: 1.5rem;
            }

            .score-table th,
            .score-table td {
                padding: 10px 14px;
                font-size: 0.85rem;
            }

            .tip-card {
                flex-direction: column;
                align-items: flex-start;
            }

            .cta-buttons {
                flex-direction: column;
            }

            .cta-buttons .btn-primary,
            .cta-buttons .btn-secondary {
                width: 100%;
                justify-content: center;
            }

            .nav-cta .btn-login {
                display: none;
            }

            .nav-cta .btn-signup {
                padding: 8px 12px;
                font-size: 0.78rem;
            }
        }

/* roulang page: article */
:root {
            --primary: #0a2e1c;
            --primary-deep: #062315;
            --accent-gold: #ffd700;
            --accent-red: #d32f2f;
            --text-white: #ffffff;
            --text-mint: #d1f2eb;
            --text-muted: #9ab5a5;
            --bg-dark: #0a1a12;
            --bg-card: #0f2a1a;
            --border-gold: rgba(255, 215, 0, 0.35);
            --border-light: rgba(255, 255, 255, 0.08);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 20px;
            --shadow-soft: 0 8px 24px rgba(0, 0, 0, 0.25);
            --shadow-gold: 0 4px 20px rgba(255, 215, 0, 0.18);
            --font-primary: 'Segoe UI', 'Roboto', 'Helvetica Neue', Arial, sans-serif;
            --font-heading: 'Georgia', 'Times New Roman', serif;
            --spacing-xs: 0.5rem;
            --spacing-sm: 1rem;
            --spacing-md: 1.5rem;
            --spacing-lg: 2.5rem;
            --spacing-xl: 4rem;
            --spacing-2xl: 6rem;
        }

        *,
        *::before,
        *::after {
            box-sizing: border-box;
            margin: 0;
            padding: 0;
        }

        html {
            scroll-behavior: smooth;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        body {
            font-family: var(--font-primary);
            background: var(--bg-dark);
            color: var(--text-white);
            line-height: 1.65;
            font-size: 16px;
            overflow-x: hidden;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
            border-radius: var(--radius-sm);
        }

        a {
            color: var(--accent-gold);
            text-decoration: none;
            transition: color 0.25s ease, border-color 0.25s ease;
        }

        a:hover {
            color: #ffe44d;
        }

        a:focus-visible,
        button:focus-visible,
        input:focus-visible {
            outline: 2px solid var(--accent-gold);
            outline-offset: 3px;
            border-radius: 4px;
        }

        button {
            cursor: pointer;
            font-family: var(--font-primary);
            border: none;
            background: none;
            transition: all 0.25s ease;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* ===== HEADER & NAV ===== */
        .site-header {
            position: sticky;
            top: 0;
            z-index: 100;
            background: rgba(6, 23, 21, 0.92);
            backdrop-filter: blur(18px);
            -webkit-backdrop-filter: blur(18px);
            border-bottom: 1px solid var(--border-gold);
            box-shadow: 0 2px 12px rgba(0, 0, 0, 0.3);
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            height: 72px;
            padding-top: 0;
            padding-bottom: 0;
        }

        .logo {
            font-family: var(--font-heading);
            font-size: 1.5rem;
            font-weight: 700;
            color: var(--accent-gold);
            letter-spacing: 0.5px;
            white-space: nowrap;
            text-shadow: 0 0 18px rgba(255, 215, 0, 0.35);
            transition: color 0.25s ease, text-shadow 0.25s ease;
        }

        .logo:hover {
            color: #ffe44d;
            text-shadow: 0 0 24px rgba(255, 215, 0, 0.55);
        }

        .nav-links {
            display: flex;
            align-items: center;
            gap: 28px;
            list-style: none;
            margin: 0;
            padding: 0;
        }

        .nav-links a {
            color: var(--text-mint);
            font-size: 0.95rem;
            font-weight: 500;
            position: relative;
            padding: 6px 2px;
            transition: color 0.25s ease;
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: -2px;
            left: 0;
            width: 0;
            height: 2px;
            background: var(--accent-gold);
            border-radius: 2px;
            transition: width 0.3s ease;
        }

        .nav-links a:hover,
        .nav-links a.active {
            color: var(--accent-gold);
        }

        .nav-links a:hover::after,
        .nav-links a.active::after {
            width: 100%;
        }

        .nav-cta {
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .btn-login,
        .btn-signup {
            padding: 8px 18px;
            border-radius: 30px;
            font-size: 0.88rem;
            font-weight: 600;
            transition: all 0.25s ease;
            white-space: nowrap;
        }

        .btn-login {
            background: transparent;
            color: var(--text-mint);
            border: 1px solid var(--border-light);
        }

        .btn-login:hover {
            border-color: var(--accent-gold);
            color: var(--accent-gold);
            background: rgba(255, 215, 0, 0.05);
        }

        .btn-signup {
            background: linear-gradient(135deg, #ffd700, #f0a500);
            color: #0a2e1c;
            box-shadow: 0 4px 14px rgba(255, 215, 0, 0.3);
        }

        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(255, 215, 0, 0.45);
            background: linear-gradient(135deg, #ffe44d, #ffb800);
        }

        .menu-toggle {
            display: none;
            font-size: 1.4rem;
            color: var(--accent-gold);
            background: none;
            border: none;
            padding: 6px;
        }

        /* ===== ARTICLE HERO ===== */
        .article-hero {
            position: relative;
            padding: 60px 0 40px;
            background: linear-gradient(180deg, #0a2e1c 0%, #0a1a12 100%);
            border-bottom: 1px solid var(--border-gold);
            overflow: hidden;
        }

        .article-hero::before {
            content: '';
            position: absolute;
            top: -40%;
            right: -10%;
            width: 450px;
            height: 450px;
            background: radial-gradient(circle, rgba(255, 215, 0, 0.08) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .article-hero::after {
            content: '';
            position: absolute;
            bottom: -30%;
            left: -5%;
            width: 350px;
            height: 350px;
            background: radial-gradient(circle, rgba(211, 47, 47, 0.06) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .article-hero .container {
            position: relative;
            z-index: 2;
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-muted);
            margin-bottom: 20px;
            flex-wrap: wrap;
        }

        .breadcrumb a {
            color: var(--text-mint);
            transition: color 0.25s ease;
        }

        .breadcrumb a:hover {
            color: var(--accent-gold);
        }

        .breadcrumb i {
            font-size: 0.7rem;
            color: var(--accent-gold);
        }

        .article-hero h1 {
            font-family: var(--font-heading);
            font-size: 2.2rem;
            font-weight: 700;
            line-height: 1.3;
            color: var(--text-white);
            margin-bottom: 16px;
            max-width: 900px;
        }

        .article-meta {
            display: flex;
            align-items: center;
            gap: 20px;
            flex-wrap: wrap;
            font-size: 0.9rem;
            color: var(--text-muted);
            padding-top: 16px;
            border-top: 1px solid var(--border-light);
        }

        .article-meta i {
            color: var(--accent-gold);
            margin-right: 6px;
        }

        /* ===== ARTICLE BODY ===== */
        .article-main {
            padding: 50px 0 70px;
            background: var(--bg-dark);
        }

        .article-layout {
            display: grid;
            grid-template-columns: 1fr 320px;
            gap: 40px;
            align-items: start;
        }

        .article-content {
            background: var(--bg-card);
            border-radius: var(--radius-lg);
            padding: 40px 36px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-soft);
        }

        .article-content .featured-image {
            margin: 0 0 30px;
            border-radius: var(--radius-md);
            overflow: hidden;
            box-shadow: var(--shadow-soft);
        }

        .article-content .featured-image img {
            width: 100%;
            height: auto;
            border-radius: var(--radius-md);
        }

        .article-content p {
            color: var(--text-mint);
            font-size: 1rem;
            margin-bottom: 20px;
            line-height: 1.75;
        }

        .article-content h2 {
            font-family: var(--font-heading);
            font-size: 1.6rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin: 35px 0 16px;
            line-height: 1.35;
            border-left: 4px solid var(--accent-gold);
            padding-left: 16px;
        }

        .article-content h3 {
            font-family: var(--font-heading);
            font-size: 1.25rem;
            font-weight: 600;
            color: var(--text-white);
            margin: 28px 0 12px;
            line-height: 1.4;
        }

        .article-content ul,
        .article-content ol {
            margin: 0 0 20px 24px;
            padding: 0;
        }

        .article-content li {
            color: var(--text-mint);
            margin-bottom: 10px;
            line-height: 1.7;
        }

        .article-content strong {
            color: var(--text-white);
            font-weight: 600;
        }

        .article-content blockquote {
            margin: 30px 0;
            padding: 22px 26px;
            background: rgba(255, 215, 0, 0.05);
            border-left: 4px solid var(--accent-gold);
            border-radius: 0 var(--radius-md) var(--radius-md) 0;
            font-style: italic;
            color: var(--text-mint);
            font-size: 1.05rem;
            line-height: 1.7;
        }

        .article-content table {
            width: 100%;
            border-collapse: collapse;
            margin: 25px 0;
            border-radius: var(--radius-sm);
            overflow: hidden;
            box-shadow: var(--shadow-soft);
        }

        .article-content th {
            background: var(--primary-deep);
            color: var(--accent-gold);
            font-weight: 600;
            padding: 14px 16px;
            text-align: left;
            font-size: 0.95rem;
        }

        .article-content td {
            padding: 12px 16px;
            border-bottom: 1px solid var(--border-light);
            color: var(--text-mint);
            font-size: 0.92rem;
        }

        .article-content tr:last-child td {
            border-bottom: none;
        }

        /* ===== SIDEBAR ===== */
        .article-sidebar {
            position: sticky;
            top: 100px;
            display: flex;
            flex-direction: column;
            gap: 24px;
        }

        .sidebar-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            padding: 24px;
            border: 1px solid var(--border-light);
            box-shadow: var(--shadow-soft);
        }

        .sidebar-card h4 {
            font-family: var(--font-heading);
            font-size: 1.15rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin-bottom: 16px;
            padding-bottom: 12px;
            border-bottom: 1px solid var(--border-gold);
        }

        .sidebar-card ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .sidebar-card li {
            margin-bottom: 12px;
        }

        .sidebar-card li a {
            display: flex;
            align-items: center;
            gap: 10px;
            color: var(--text-mint);
            font-size: 0.9rem;
            line-height: 1.4;
            transition: color 0.25s ease, transform 0.25s ease;
        }

        .sidebar-card li a:hover {
            color: var(--accent-gold);
            transform: translateX(4px);
        }

        .sidebar-card li i {
            color: var(--accent-gold);
            font-size: 0.8rem;
            flex-shrink: 0;
        }

        .sidebar-cta {
            background: linear-gradient(135deg, #0a2e1c, #062315);
            border: 1px solid var(--border-gold);
            text-align: center;
            padding: 28px 22px;
        }

        .sidebar-cta .cta-icon {
            font-size: 2.2rem;
            color: var(--accent-gold);
            margin-bottom: 12px;
        }

        .sidebar-cta h4 {
            font-family: var(--font-heading);
            font-size: 1.2rem;
            color: var(--text-white);
            margin-bottom: 10px;
            border-bottom: none;
            padding-bottom: 0;
        }

        .sidebar-cta p {
            color: var(--text-muted);
            font-size: 0.88rem;
            margin-bottom: 18px;
            line-height: 1.6;
        }

        .sidebar-cta .btn-cta {
            display: inline-block;
            background: linear-gradient(135deg, #ffd700, #f0a500);
            color: #0a2e1c;
            font-weight: 700;
            padding: 12px 26px;
            border-radius: 30px;
            font-size: 0.9rem;
            transition: all 0.3s ease;
            box-shadow: 0 4px 14px rgba(255, 215, 0, 0.3);
        }

        .sidebar-cta .btn-cta:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 22px rgba(255, 215, 0, 0.5);
            color: #0a2e1c;
        }

        /* ===== RELATED SECTION ===== */
        .related-section {
            padding: 60px 0 70px;
            background: var(--primary-deep);
            border-top: 1px solid var(--border-gold);
        }

        .related-section h2 {
            font-family: var(--font-heading);
            font-size: 1.8rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 30px;
            text-align: left;
        }

        .related-grid {
            display: grid;
            grid-template-columns: repeat(3, 1fr);
            gap: 24px;
        }

        .related-card {
            background: var(--bg-card);
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-light);
            transition: all 0.3s ease;
            display: flex;
            flex-direction: column;
        }

        .related-card:hover {
            transform: translateY(-5px);
            border-color: var(--border-gold);
            box-shadow: var(--shadow-gold);
        }

        .related-card img {
            width: 100%;
            height: 170px;
            object-fit: cover;
            border-radius: 0;
        }

        .related-card .related-body {
            padding: 18px 20px;
            flex: 1;
            display: flex;
            flex-direction: column;
        }

        .related-card .related-tag {
            display: inline-block;
            font-size: 0.75rem;
            font-weight: 600;
            color: var(--accent-gold);
            text-transform: uppercase;
            letter-spacing: 0.5px;
            margin-bottom: 8px;
        }

        .related-card h3 {
            font-family: var(--font-heading);
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-white);
            line-height: 1.4;
            margin-bottom: 10px;
        }

        .related-card p {
            color: var(--text-muted);
            font-size: 0.88rem;
            line-height: 1.6;
            flex: 1;
        }

        .related-card .read-more {
            color: var(--accent-gold);
            font-size: 0.88rem;
            font-weight: 600;
            margin-top: 12px;
            display: inline-flex;
            align-items: center;
            gap: 6px;
        }

        .related-card .read-more:hover {
            color: #ffe44d;
        }

        /* ===== CTA SECTION ===== */
        .cta-section {
            padding: 60px 0;
            background: linear-gradient(135deg, #0a2e1c 0%, #062315 100%);
            border-top: 1px solid var(--border-gold);
            border-bottom: 1px solid var(--border-gold);
        }

        .cta-box {
            text-align: center;
            max-width: 700px;
            margin: 0 auto;
        }

        .cta-box h2 {
            font-family: var(--font-heading);
            font-size: 1.9rem;
            font-weight: 700;
            color: var(--text-white);
            margin-bottom: 16px;
        }

        .cta-box p {
            color: var(--text-mint);
            font-size: 1.05rem;
            line-height: 1.7;
            margin-bottom: 28px;
        }

        .cta-buttons {
            display: flex;
            gap: 16px;
            justify-content: center;
            flex-wrap: wrap;
        }

        .btn-primary-cta {
            background: linear-gradient(135deg, #ffd700, #f0a500);
            color: #0a2e1c;
            font-weight: 700;
            padding: 14px 32px;
            border-radius: 30px;
            font-size: 1rem;
            box-shadow: 0 6px 20px rgba(255, 215, 0, 0.35);
            transition: all 0.3s ease;
        }

        .btn-primary-cta:hover {
            transform: translateY(-3px);
            box-shadow: 0 10px 28px rgba(255, 215, 0, 0.55);
            color: #0a2e1c;
        }

        .btn-secondary-cta {
            background: transparent;
            color: var(--accent-gold);
            font-weight: 600;
            padding: 14px 28px;
            border-radius: 30px;
            font-size: 1rem;
            border: 1px solid var(--border-gold);
            transition: all 0.3s ease;
        }

        .btn-secondary-cta:hover {
            background: rgba(255, 215, 0, 0.08);
            border-color: var(--accent-gold);
            color: #ffe44d;
        }

        /* ===== FAB ===== */
        .fab-support {
            position: fixed;
            left: 20px;
            bottom: 100px;
            z-index: 99;
            width: 52px;
            height: 52px;
            border-radius: 50%;
            background: radial-gradient(circle at 30% 30%, #2a3d2e, #0a1a12);
            border: 2px solid var(--accent-gold);
            color: var(--accent-gold);
            font-size: 1.3rem;
            display: flex;
            align-items: center;
            justify-content: center;
            box-shadow: 0 4px 20px rgba(255, 215, 0, 0.3);
            opacity: 0.7;
            transition: all 0.3s ease;
            animation: fabFloat 3s ease-in-out infinite;
        }

        .fab-support:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 6px 26px rgba(255, 215, 0, 0.55);
            animation-play-state: paused;
        }

        .fab-support:active {
            transform: scale(0.95) translateY(2px);
        }

        .fab-support .notification-dot {
            position: absolute;
            top: 2px;
            right: 2px;
            width: 10px;
            height: 10px;
            background: #d32f2f;
            border-radius: 50%;
            border: 2px solid var(--bg-dark);
            animation: dotBlink 1.6s ease-in-out infinite;
        }

        @keyframes fabFloat {
            0%, 100% {
                transform: translateY(0);
            }
            50% {
                transform: translateY(-8px);
            }
        }

        @keyframes dotBlink {
            0%, 100% {
                opacity: 1;
            }
            50% {
                opacity: 0.3;
            }
        }

        /* ===== FOOTER ===== */
        .site-footer {
            background: #050f0a;
            padding: 60px 0 30px;
            border-top: 2px solid var(--border-gold);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 40px;
        }

        .footer-brand h3 {
            font-family: var(--font-heading);
            font-size: 1.4rem;
            font-weight: 700;
            color: var(--accent-gold);
            margin-bottom: 14px;
        }

        .footer-brand p {
            color: var(--text-muted);
            font-size: 0.9rem;
            line-height: 1.7;
        }

        .footer-links h4 {
            font-size: 1rem;
            font-weight: 600;
            color: var(--text-white);
            margin-bottom: 16px;
        }

        .footer-links ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-links li {
            margin-bottom: 10px;
        }

        .footer-links a {
            color: var(--text-muted);
            font-size: 0.88rem;
            transition: color 0.25s ease;
        }

        .footer-links a:hover {
            color: var(--accent-gold);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 20px;
            padding-top: 24px;
            border-top: 1px solid var(--border-light);
            flex-wrap: wrap;
        }

        .footer-bottom p {
            color: var(--text-muted);
            font-size: 0.85rem;
            margin: 0;
        }

        .badge-18,
        .badge-license {
            display: inline-flex;
            align-items: center;
            padding: 6px 14px;
            border-radius: 20px;
            font-size: 0.75rem;
            font-weight: 600;
            letter-spacing: 0.5px;
        }

        .badge-18 {
            background: #d32f2f;
            color: #fff;
            border: 1px solid #ff6b6b;
        }

        .badge-license {
            background: rgba(255, 215, 0, 0.1);
            color: var(--accent-gold);
            border: 1px solid var(--border-gold);
        }

        /* ===== NOT FOUND ===== */
        .not-found-box {
            text-align: center;
            padding: 60px 20px;
        }

        .not-found-box i {
            font-size: 3rem;
            color: var(--text-muted);
            margin-bottom: 20px;
        }

        .not-found-box h2 {
            font-family: var(--font-heading);
            font-size: 1.6rem;
            color: var(--text-white);
            margin-bottom: 14px;
        }

        .not-found-box p {
            color: var(--text-muted);
            margin-bottom: 24px;
        }

        /* ===== RESPONSIVE ===== */
        @media (max-width: 1024px) {
            .article-layout {
                grid-template-columns: 1fr;
            }

            .article-sidebar {
                position: static;
                flex-direction: row;
                flex-wrap: wrap;
            }

            .sidebar-card {
                flex: 1 1 45%;
                min-width: 260px;
            }

            .related-grid {
                grid-template-columns: repeat(2, 1fr);
            }

            .footer-grid {
                grid-template-columns: 1fr 1fr;
            }

            .footer-brand {
                grid-column: 1 / -1;
            }
        }

        @media (max-width: 768px) {
            .nav-container {
                height: 64px;
                gap: 12px;
            }

            .menu-toggle {
                display: block;
            }

            .nav-links {
                position: fixed;
                top: 64px;
                left: 0;
                right: 0;
                background: rgba(6, 23, 21, 0.98);
                backdrop-filter: blur(18px);
                flex-direction: column;
                gap: 0;
                padding: 16px 20px;
                border-bottom: 2px solid var(--border-gold);
                box-shadow: 0 8px 24px rgba(0, 0, 0, 0.4);
                display: none;
                z-index: 99;
            }

            .nav-links.open {
                display: flex;
            }

            .nav-links li {
                width: 100%;
            }

            .nav-links a {
                display: block;
                padding: 12px 4px;
                font-size: 1rem;
                border-bottom: 1px solid var(--border-light);
            }

            .nav-links a::after {
                display: none;
            }

            .nav-cta {
                gap: 6px;
            }

            .btn-login,
            .btn-signup {
                padding: 6px 12px;
                font-size: 0.78rem;
            }

            .article-hero {
                padding: 40px 0 30px;
            }

            .article-hero h1 {
                font-size: 1.6rem;
            }

            .article-content {
                padding: 24px 18px;
            }

            .article-content h2 {
                font-size: 1.35rem;
            }

            .related-grid {
                grid-template-columns: 1fr;
            }

            .article-sidebar {
                flex-direction: column;
            }

            .sidebar-card {
                flex: 1 1 100%;
            }

            .cta-box h2 {
                font-size: 1.5rem;
            }

            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }

            .footer-brand {
                grid-column: auto;
            }

            .footer-bottom {
                flex-direction: column;
                text-align: center;
            }

            .fab-support {
                width: 46px;
                height: 46px;
                font-size: 1.1rem;
                left: 14px;
                bottom: 80px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }

            .logo {
                font-size: 1.2rem;
            }

            .btn-login,
            .btn-signup {
                padding: 5px 10px;
                font-size: 0.72rem;
            }

            .nav-cta {
                gap: 4px;
            }

            .article-hero h1 {
                font-size: 1.35rem;
            }

            .article-meta {
                gap: 12px;
                font-size: 0.8rem;
            }

            .article-content {
                padding: 18px 14px;
            }

            .article-content h2 {
                font-size: 1.2rem;
                padding-left: 12px;
            }

            .article-content h3 {
                font-size: 1.1rem;
            }

            .article-content blockquote {
                padding: 16px 18px;
                font-size: 0.95rem;
            }

            .cta-buttons {
                flex-direction: column;
            }

            .btn-primary-cta,
            .btn-secondary-cta {
                width: 100%;
                text-align: center;
            }

            .related-card img {
                height: 150px;
            }
        }

/* roulang page: category3 */
:root {
            --primary-bg: #0F0C20;
            --deep-bg: #0B1A30;
            --accent-lime: #CCFF00;
            --accent-cyan: #00F0FF;
            --text-white: #FFFFFF;
            --text-silver: #A6ACAF;
            --border-glow: rgba(0, 240, 255, 0.35);
            --radius-sm: 8px;
            --radius-md: 14px;
            --radius-lg: 22px;
            --shadow-neon: 0 0 18px rgba(0, 240, 255, 0.25);
            --shadow-lime: 0 0 18px rgba(204, 255, 0, 0.2);
            --transition: 0.3s cubic-bezier(0.25, 0.46, 0.45, 0.94);
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: 'Inter', 'Segoe UI', 'Roboto', sans-serif;
            background: var(--primary-bg);
            color: var(--text-white);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            overflow-x: hidden;
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 24px;
        }

        a {
            color: var(--accent-cyan);
            text-decoration: none;
            transition: var(--transition);
        }

        a:hover {
            color: var(--accent-lime);
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        /* Header / Navigation */
        .site-header {
            background: rgba(15, 12, 32, 0.95);
            backdrop-filter: blur(14px);
            border-bottom: 1px solid rgba(0, 240, 255, 0.2);
            position: sticky;
            top: 0;
            z-index: 1000;
            padding: 14px 0;
            transition: var(--transition);
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
        }

        .logo {
            font-size: 1.7rem;
            font-weight: 800;
            color: var(--text-white);
            letter-spacing: -0.5px;
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
            white-space: nowrap;
        }

        .logo:hover {
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .menu-toggle {
            display: none;
            background: rgba(0, 240, 255, 0.12);
            border: 1px solid var(--border-glow);
            color: var(--accent-cyan);
            font-size: 1.4rem;
            padding: 8px 14px;
            border-radius: var(--radius-sm);
            cursor: pointer;
            transition: var(--transition);
        }

        .menu-toggle:hover {
            background: rgba(0, 240, 255, 0.25);
            box-shadow: var(--shadow-neon);
        }

        .nav-links {
            display: flex;
            list-style: none;
            gap: 24px;
            margin: 0;
        }

        .nav-links a {
            color: var(--text-silver);
            font-weight: 600;
            font-size: 0.95rem;
            padding: 6px 0;
            position: relative;
            transition: var(--transition);
        }

        .nav-links a::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            width: 0;
            height: 2px;
            background: linear-gradient(90deg, var(--accent-lime), var(--accent-cyan));
            transition: width 0.3s ease;
            border-radius: 2px;
        }

        .nav-links a:hover::after,
        .nav-links a.active::after {
            width: 100%;
        }

        .nav-links a:hover,
        .nav-links a.active {
            color: var(--accent-cyan);
        }

        .nav-cta {
            display: flex;
            gap: 10px;
            align-items: center;
        }

        .btn-login {
            background: transparent;
            border: 1px solid rgba(0, 240, 255, 0.5);
            color: var(--accent-cyan);
            padding: 10px 20px;
            border-radius: 30px;
            font-weight: 700;
            cursor: pointer;
            transition: var(--transition);
            font-size: 0.9rem;
            white-space: nowrap;
        }

        .btn-login:hover {
            background: rgba(0, 240, 255, 0.12);
            box-shadow: var(--shadow-neon);
        }

        .btn-signup {
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            border: none;
            color: var(--primary-bg);
            padding: 10px 24px;
            border-radius: 30px;
            font-weight: 800;
            cursor: pointer;
            transition: var(--transition);
            font-size: 0.9rem;
            white-space: nowrap;
        }

        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 8px 25px rgba(204, 255, 0, 0.3);
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
        }

        /* Hero Section */
        .hero-tips {
            padding: 70px 0 50px;
            background: radial-gradient(ellipse at 30% 20%, rgba(0, 240, 255, 0.08) 0%, transparent 60%),
                        radial-gradient(ellipse at 80% 80%, rgba(204, 255, 0, 0.06) 0%, transparent 50%),
                        var(--primary-bg);
            position: relative;
            overflow: hidden;
        }

        .hero-tips::before {
            content: '';
            position: absolute;
            top: -100px;
            right: -100px;
            width: 400px;
            height: 400px;
            background: radial-gradient(circle, rgba(0, 240, 255, 0.12) 0%, transparent 70%);
            border-radius: 50%;
            pointer-events: none;
        }

        .hero-tips .container {
            position: relative;
            z-index: 1;
        }

        .hero-tips h1 {
            font-size: 2.8rem;
            font-weight: 900;
            line-height: 1.25;
            margin-bottom: 20px;
            max-width: 800px;
            letter-spacing: -1px;
        }

        .hero-tips h1 .highlight {
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .hero-tips .lead {
            font-size: 1.15rem;
            color: var(--text-silver);
            max-width: 720px;
            line-height: 1.7;
            margin-bottom: 28px;
        }

        .hero-stats {
            display: flex;
            gap: 40px;
            flex-wrap: wrap;
            margin-top: 20px;
        }

        .stat-item {
            display: flex;
            flex-direction: column;
            gap: 4px;
        }

        .stat-number {
            font-size: 2rem;
            font-weight: 800;
            color: var(--accent-cyan);
            line-height: 1.2;
        }

        .stat-label {
            font-size: 0.9rem;
            color: var(--text-silver);
            font-weight: 500;
        }

        /* Content Sections */
        .content-section {
            padding: 60px 0;
        }

        .section-header {
            margin-bottom: 40px;
            text-align: left;
        }

        .section-tag {
            display: inline-block;
            background: rgba(0, 240, 255, 0.12);
            color: var(--accent-cyan);
            padding: 6px 16px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 700;
            letter-spacing: 0.5px;
            text-transform: uppercase;
            margin-bottom: 12px;
            border: 1px solid rgba(0, 240, 255, 0.3);
        }

        .section-header h2 {
            font-size: 2rem;
            font-weight: 800;
            letter-spacing: -0.5px;
            margin-bottom: 10px;
            color: var(--text-white);
        }

        .section-header p {
            color: var(--text-silver);
            font-size: 1.05rem;
            max-width: 650px;
            line-height: 1.7;
        }

        /* Strategy Cards */
        .strategy-grid {
            display: grid;
            grid-template-columns: repeat(auto-fit, minmax(340px, 1fr));
            gap: 24px;
            margin-top: 20px;
        }

        .strategy-card {
            background: rgba(11, 26, 48, 0.65);
            border: 1px solid rgba(0, 240, 255, 0.18);
            border-radius: var(--radius-md);
            padding: 30px 26px;
            transition: var(--transition);
            position: relative;
            overflow: hidden;
        }

        .strategy-card::before {
            content: '';
            position: absolute;
            top: 0;
            left: 0;
            width: 100%;
            height: 3px;
            background: linear-gradient(90deg, var(--accent-lime), var(--accent-cyan));
            opacity: 0;
            transition: var(--transition);
        }

        .strategy-card:hover {
            border-color: rgba(0, 240, 255, 0.45);
            box-shadow: 0 12px 35px rgba(0, 240, 255, 0.12);
            transform: translateY(-4px);
        }

        .strategy-card:hover::before {
            opacity: 1;
        }

        .card-icon {
            width: 52px;
            height: 52px;
            border-radius: 12px;
            background: linear-gradient(135deg, rgba(204, 255, 0, 0.15), rgba(0, 240, 255, 0.15));
            display: flex;
            align-items: center;
            justify-content: center;
            margin-bottom: 18px;
            font-size: 1.5rem;
            color: var(--accent-cyan);
            border: 1px solid rgba(0, 240, 255, 0.25);
        }

        .strategy-card h3 {
            font-size: 1.25rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-white);
        }

        .strategy-card p {
            color: var(--text-silver);
            font-size: 0.95rem;
            line-height: 1.7;
            margin-bottom: 0;
        }

        /* Level Progression */
        .level-section {
            background: var(--deep-bg);
            padding: 60px 0;
            border-top: 1px solid rgba(0, 240, 255, 0.1);
            border-bottom: 1px solid rgba(0, 240, 255, 0.1);
        }

        .level-list {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .level-item {
            display: flex;
            align-items: flex-start;
            gap: 18px;
            padding: 18px 0;
            border-bottom: 1px solid rgba(0, 240, 255, 0.1);
        }

        .level-item:last-child {
            border-bottom: none;
        }

        .level-badge {
            min-width: 36px;
            height: 36px;
            border-radius: 50%;
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            color: var(--primary-bg);
            font-weight: 800;
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 0.9rem;
            flex-shrink: 0;
        }

        .level-content h4 {
            font-size: 1.05rem;
            font-weight: 700;
            margin-bottom: 6px;
            color: var(--text-white);
        }

        .level-content p {
            color: var(--text-silver);
            font-size: 0.92rem;
            line-height: 1.7;
            margin: 0;
        }

        /* FAQ */
        .faq-section {
            padding: 60px 0;
        }

        .faq-list {
            max-width: 800px;
        }

        .faq-item {
            background: rgba(11, 26, 48, 0.55);
            border: 1px solid rgba(0, 240, 255, 0.15);
            border-radius: var(--radius-sm);
            margin-bottom: 14px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(0, 240, 255, 0.35);
        }

        .faq-question {
            padding: 20px 24px;
            display: flex;
            align-items: center;
            justify-content: space-between;
            cursor: pointer;
            font-weight: 700;
            font-size: 1rem;
            color: var(--text-white);
            gap: 16px;
        }

        .faq-question .faq-icon {
            color: var(--accent-cyan);
            font-size: 1rem;
            transition: var(--transition);
            flex-shrink: 0;
        }

        .faq-item.open .faq-icon {
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease;
            padding: 0 24px;
        }

        .faq-item.open .faq-answer {
            max-height: 500px;
            padding-bottom: 20px;
        }

        .faq-answer p {
            color: var(--text-silver);
            font-size: 0.95rem;
            line-height: 1.7;
            margin: 0;
        }

        /* CTA */
        .cta-section {
            padding: 70px 0;
            background: linear-gradient(135deg, rgba(204, 255, 0, 0.05) 0%, rgba(0, 240, 255, 0.08) 100%);
            border-top: 1px solid rgba(0, 240, 255, 0.2);
        }

        .cta-box {
            text-align: center;
            max-width: 650px;
            margin: 0 auto;
        }

        .cta-box h2 {
            font-size: 2.2rem;
            font-weight: 900;
            margin-bottom: 16px;
            letter-spacing: -0.5px;
        }

        .cta-box p {
            color: var(--text-silver);
            font-size: 1.1rem;
            margin-bottom: 28px;
            line-height: 1.7;
        }

        .btn-primary-lg {
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            color: var(--primary-bg);
            padding: 16px 36px;
            border-radius: 40px;
            font-weight: 800;
            font-size: 1.05rem;
            border: none;
            cursor: pointer;
            transition: var(--transition);
            display: inline-block;
        }

        .btn-primary-lg:hover {
            transform: translateY(-3px);
            box-shadow: 0 15px 35px rgba(204, 255, 0, 0.3);
            background: linear-gradient(135deg, var(--accent-cyan), var(--accent-lime));
            color: var(--primary-bg);
        }

        /* Footer */
        .site-footer {
            background: rgba(8, 9, 15, 0.98);
            padding: 50px 0 25px;
            border-top: 1px solid rgba(0, 240, 255, 0.15);
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 40px;
            margin-bottom: 36px;
        }

        .footer-brand h3 {
            font-size: 1.4rem;
            font-weight: 800;
            margin-bottom: 14px;
            background: linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            -webkit-background-clip: text;
            -webkit-text-fill-color: transparent;
            background-clip: text;
        }

        .footer-brand p {
            color: var(--text-silver);
            font-size: 0.9rem;
            line-height: 1.7;
            max-width: 400px;
        }

        .footer-links h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 14px;
            color: var(--text-white);
        }

        .footer-links ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-links li {
            margin-bottom: 8px;
        }

        .footer-links a {
            color: var(--text-silver);
            font-size: 0.9rem;
            transition: var(--transition);
        }

        .footer-links a:hover {
            color: var(--accent-cyan);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            flex-wrap: wrap;
            gap: 16px;
            padding-top: 20px;
            border-top: 1px solid rgba(0, 240, 255, 0.1);
            font-size: 0.85rem;
            color: var(--text-silver);
        }

        .badge-18 {
            background: #D32F2F;
            color: #fff;
            padding: 4px 10px;
            border-radius: 4px;
            font-weight: 800;
            font-size: 0.8rem;
        }

        .badge-license {
            background: rgba(0, 240, 255, 0.12);
            color: var(--accent-cyan);
            padding: 4px 12px;
            border-radius: 4px;
            font-size: 0.8rem;
            font-weight: 600;
            border: 1px solid rgba(0, 240, 255, 0.25);
        }

        /* FAB */
        .fab-neon {
            position: fixed;
            left: 24px;
            bottom: 96px;
            z-index: 999;
            width: 56px;
            height: 56px;
            border-radius: 50%;
            background: rgba(0, 0, 0, 0.6);
            backdrop-filter: blur(12px);
            border: 2px solid transparent;
            background-image: linear-gradient(rgba(0, 0, 0, 0.75), rgba(0, 0, 0, 0.75)), 
                              linear-gradient(135deg, var(--accent-lime), var(--accent-cyan));
            background-origin: border-box;
            background-clip: padding-box, border-box;
            color: var(--accent-cyan);
            display: flex;
            align-items: center;
            justify-content: center;
            font-size: 1.5rem;
            cursor: pointer;
            transition: var(--transition);
            opacity: 0.6;
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.4);
            animation: fabPulse 3s ease-in-out infinite;
        }

        .fab-neon:hover {
            opacity: 1;
            transform: scale(1.1);
            box-shadow: 0 0 28px rgba(0, 240, 255, 0.65);
        }

        .fab-neon:active {
            transform: scale(0.95);
            border-color: var(--accent-lime);
        }

        @keyframes fabPulse {
            0%, 100% { opacity: 0.6; }
            50% { opacity: 0.9; }
        }

        .fab-notification {
            position: absolute;
            top: -4px;
            right: -4px;
            width: 16px;
            height: 16px;
            background: #FF007F;
            border-radius: 50%;
            border: 2px solid var(--primary-bg);
            animation: notificationBlink 1.5s ease-in-out infinite;
        }

        @keyframes notificationBlink {
            0%, 100% { opacity: 1; }
            50% { opacity: 0.3; }
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-tips h1 {
                font-size: 2.3rem;
            }
            .strategy-grid {
                grid-template-columns: repeat(auto-fit, minmax(300px, 1fr));
            }
            .footer-grid {
                grid-template-columns: 1.5fr 1fr 1fr;
                gap: 28px;
            }
        }

        @media (max-width: 768px) {
            .container {
                padding: 0 18px;
            }
            .menu-toggle {
                display: block;
            }
            .nav-links {
                display: none;
                flex-direction: column;
                width: 100%;
                gap: 0;
                margin-top: 12px;
                padding-top: 12px;
                border-top: 1px solid rgba(0, 240, 255, 0.15);
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links li {
                padding: 10px 0;
            }
            .nav-cta {
                display: flex;
                gap: 8px;
            }
            .btn-login, .btn-signup {
                padding: 8px 16px;
                font-size: 0.8rem;
            }
            .hero-tips {
                padding: 50px 0 35px;
            }
            .hero-tips h1 {
                font-size: 1.9rem;
            }
            .hero-stats {
                gap: 24px;
            }
            .stat-number {
                font-size: 1.5rem;
            }
            .content-section {
                padding: 45px 0;
            }
            .section-header h2 {
                font-size: 1.6rem;
            }
            .strategy-grid {
                grid-template-columns: 1fr;
                gap: 18px;
            }
            .strategy-card {
                padding: 24px 20px;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 28px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                align-items: center;
            }
            .fab-neon {
                left: 16px;
                bottom: 80px;
                width: 50px;
                height: 50px;
                font-size: 1.3rem;
            }
            .cta-box h2 {
                font-size: 1.7rem;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 14px;
            }
            .logo {
                font-size: 1.3rem;
            }
            .hero-tips h1 {
                font-size: 1.55rem;
            }
            .hero-tips .lead {
                font-size: 1rem;
            }
            .section-header h2 {
                font-size: 1.4rem;
            }
            .level-item {
                flex-direction: column;
                gap: 10px;
            }
            .btn-primary-lg {
                padding: 14px 28px;
                font-size: 0.95rem;
            }
            .nav-cta {
                gap: 6px;
            }
            .btn-login, .btn-signup {
                padding: 7px 12px;
                font-size: 0.75rem;
            }
        }

/* roulang page: category2 */
:root {
            --primary-bg: #08090F;
            --secondary-bg: #0D111E;
            --card-bg: #111624;
            --accent-blue: #0052FF;
            --accent-cyan: #00F0FF;
            --text-white: #FFFFFF;
            --text-silver: #CBD5E1;
            --text-muted: #94A3B8;
            --border-color: #1E2A3A;
            --gradient-main: linear-gradient(135deg, #0052FF 0%, #00F0FF 100%);
            --shadow-glow: 0 0 20px rgba(0, 240, 255, 0.15);
            --radius-sm: 8px;
            --radius-md: 16px;
            --radius-lg: 24px;
            --font-primary: 'Inter', -apple-system, BlinkMacSystemFont, 'Segoe UI', Roboto, sans-serif;
            --transition: all 0.3s cubic-bezier(0.4, 0, 0.2, 1);
        }

        * {
            margin: 0;
            padding: 0;
            box-sizing: border-box;
        }

        body {
            font-family: var(--font-primary);
            background: var(--primary-bg);
            color: var(--text-white);
            line-height: 1.6;
            -webkit-font-smoothing: antialiased;
            -moz-osx-font-smoothing: grayscale;
        }

        img {
            max-width: 100%;
            height: auto;
            display: block;
        }

        a {
            text-decoration: none;
            color: inherit;
            transition: var(--transition);
        }

        button {
            cursor: pointer;
            font-family: var(--font-primary);
            border: none;
            outline: none;
            transition: var(--transition);
        }

        .container {
            max-width: 1200px;
            margin: 0 auto;
            padding: 0 20px;
        }

        /* Header */
        .site-header {
            position: fixed;
            top: 0;
            left: 0;
            right: 0;
            z-index: 1000;
            background: rgba(8, 9, 15, 0.95);
            backdrop-filter: blur(20px);
            border-bottom: 1px solid rgba(0, 240, 255, 0.1);
            padding: 16px 0;
        }

        .nav-container {
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 24px;
        }

        .logo {
            font-size: 1.25rem;
            font-weight: 700;
            color: var(--text-white);
            white-space: nowrap;
            letter-spacing: -0.02em;
        }

        .logo span {
            background: var(--gradient-main);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .nav-links {
            display: flex;
            list-style: none;
            gap: 8px;
            margin: 0;
        }

        .nav-links a {
            display: block;
            padding: 8px 16px;
            font-size: 0.9rem;
            font-weight: 500;
            color: var(--text-muted);
            border-radius: 6px;
            white-space: nowrap;
            transition: var(--transition);
        }

        .nav-links a:hover,
        .nav-links a.active {
            color: var(--text-white);
            background: rgba(0, 240, 255, 0.1);
        }

        .nav-cta {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .btn-login,
        .btn-signup {
            padding: 10px 18px;
            font-size: 0.85rem;
            font-weight: 600;
            border-radius: 6px;
            white-space: nowrap;
        }

        .btn-login {
            background: transparent;
            color: var(--text-silver);
            border: 1px solid rgba(203, 213, 225, 0.3);
        }

        .btn-login:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
        }

        .btn-signup {
            background: var(--gradient-main);
            color: #fff;
            box-shadow: 0 4px 14px rgba(0, 82, 255, 0.4);
        }

        .btn-signup:hover {
            transform: translateY(-2px);
            box-shadow: 0 6px 20px rgba(0, 240, 255, 0.5);
        }

        .menu-toggle {
            display: none;
            background: none;
            border: none;
            color: var(--text-white);
            font-size: 1.5rem;
            padding: 4px;
        }

        /* Hero */
        .hero-section {
            padding: 140px 0 80px;
            background: linear-gradient(180deg, rgba(0, 82, 255, 0.08) 0%, transparent 100%);
            position: relative;
            overflow: hidden;
        }

        .hero-section::before {
            content: '';
            position: absolute;
            top: -50%;
            right: -20%;
            width: 600px;
            height: 600px;
            background: radial-gradient(circle, rgba(0, 240, 255, 0.08) 0%, transparent 70%);
            pointer-events: none;
        }

        .hero-content {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 60px;
            align-items: center;
            position: relative;
            z-index: 1;
        }

        .hero-text h1 {
            font-size: 2.8rem;
            font-weight: 800;
            line-height: 1.2;
            margin-bottom: 20px;
            letter-spacing: -0.02em;
            background: linear-gradient(135deg, #FFFFFF 40%, #00F0FF 100%);
            -webkit-background-clip: text;
            background-clip: text;
            -webkit-text-fill-color: transparent;
        }

        .hero-text .hero-sub {
            font-size: 1.1rem;
            color: var(--text-silver);
            line-height: 1.7;
            margin-bottom: 32px;
            max-width: 520px;
        }

        .hero-actions {
            display: flex;
            gap: 16px;
            flex-wrap: wrap;
        }

        .btn-primary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            background: var(--gradient-main);
            color: #fff;
            font-weight: 700;
            font-size: 1rem;
            border-radius: 8px;
            box-shadow: 0 8px 24px rgba(0, 82, 255, 0.4);
        }

        .btn-primary:hover {
            transform: translateY(-2px);
            box-shadow: 0 12px 32px rgba(0, 240, 255, 0.5);
        }

        .btn-secondary {
            display: inline-flex;
            align-items: center;
            gap: 8px;
            padding: 14px 28px;
            background: transparent;
            color: var(--text-silver);
            font-weight: 600;
            font-size: 1rem;
            border: 1px solid rgba(203, 213, 225, 0.3);
            border-radius: 8px;
        }

        .btn-secondary:hover {
            border-color: var(--accent-cyan);
            color: var(--accent-cyan);
        }

        .hero-image {
            position: relative;
            border-radius: var(--radius-lg);
            overflow: hidden;
            border: 1px solid rgba(0, 240, 255, 0.2);
            box-shadow: var(--shadow-glow);
        }

        .hero-image img {
            width: 100%;
            height: 100%;
            object-fit: cover;
            min-height: 350px;
        }

        .hero-image::after {
            content: '';
            position: absolute;
            bottom: 0;
            left: 0;
            right: 0;
            height: 60%;
            background: linear-gradient(180deg, transparent 0%, rgba(8, 9, 15, 0.8) 100%);
            pointer-events: none;
        }

        .hero-badge {
            position: absolute;
            top: 20px;
            right: 20px;
            z-index: 2;
            background: rgba(0, 240, 255, 0.15);
            backdrop-filter: blur(10px);
            border: 1px solid rgba(0, 240, 255, 0.4);
            padding: 8px 16px;
            border-radius: 20px;
            font-size: 0.8rem;
            font-weight: 600;
            color: var(--accent-cyan);
        }

        /* Breadcrumb */
        .breadcrumb-section {
            padding: 20px 0 0;
            background: var(--primary-bg);
        }

        .breadcrumb {
            display: flex;
            align-items: center;
            gap: 8px;
            font-size: 0.85rem;
            color: var(--text-muted);
            list-style: none;
            margin: 0;
            padding: 0;
            flex-wrap: wrap;
        }

        .breadcrumb li {
            display: flex;
            align-items: center;
            gap: 8px;
        }

        .breadcrumb li:not(:last-child)::after {
            content: '/';
            color: rgba(148, 163, 184, 0.5);
        }

        .breadcrumb a {
            color: var(--text-silver);
        }

        .breadcrumb a:hover {
            color: var(--accent-cyan);
        }

        .breadcrumb .current {
            color: var(--accent-cyan);
            font-weight: 600;
        }

        /* Section Common */
        .section {
            padding: 60px 0;
        }

        .section-header {
            margin-bottom: 40px;
        }

        .section-header h2 {
            font-size: 2rem;
            font-weight: 700;
            margin-bottom: 12px;
            letter-spacing: -0.01em;
        }

        .section-header p {
            color: var(--text-muted);
            font-size: 1.05rem;
            line-height: 1.7;
            max-width: 700px;
        }

        /* Content Layout */
        .content-grid {
            display: grid;
            grid-template-columns: 1fr 1fr;
            gap: 40px;
            align-items: start;
        }

        .content-text h3 {
            font-size: 1.4rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-white);
        }

        .content-text p {
            color: var(--text-silver);
            line-height: 1.7;
            margin-bottom: 16px;
        }

        .content-text ul {
            list-style: none;
            padding: 0;
            margin: 16px 0;
        }

        .content-text ul li {
            position: relative;
            padding-left: 24px;
            margin-bottom: 10px;
            color: var(--text-silver);
            line-height: 1.6;
        }

        .content-text ul li::before {
            content: '▸';
            position: absolute;
            left: 0;
            color: var(--accent-cyan);
            font-weight: bold;
        }

        .content-image {
            border-radius: var(--radius-md);
            overflow: hidden;
            border: 1px solid var(--border-color);
            box-shadow: 0 8px 24px rgba(0, 0, 0, 0.3);
        }

        .content-image img {
            width: 100%;
            height: auto;
            object-fit: cover;
        }

        /* Info Cards */
        .info-card {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            padding: 28px;
            margin-bottom: 24px;
            transition: var(--transition);
        }

        .info-card:hover {
            border-color: rgba(0, 240, 255, 0.3);
            box-shadow: 0 4px 16px rgba(0, 240, 255, 0.08);
        }

        .info-card h4 {
            font-size: 1.2rem;
            font-weight: 700;
            margin-bottom: 12px;
            color: var(--text-white);
            display: flex;
            align-items: center;
            gap: 10px;
        }

        .info-card h4 i {
            color: var(--accent-cyan);
            font-size: 1.1rem;
        }

        .info-card p {
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0;
        }

        /* Table */
        .table-wrapper {
            overflow-x: auto;
            margin: 32px 0;
            border-radius: var(--radius-md);
            border: 1px solid var(--border-color);
        }

        .styled-table {
            width: 100%;
            border-collapse: collapse;
            min-width: 600px;
        }

        .styled-table th,
        .styled-table td {
            padding: 14px 18px;
            text-align: left;
            border-bottom: 1px solid var(--border-color);
            color: var(--text-silver);
            font-size: 0.95rem;
        }

        .styled-table th {
            background: rgba(0, 82, 255, 0.15);
            color: var(--text-white);
            font-weight: 700;
            font-size: 0.9rem;
            text-transform: uppercase;
            letter-spacing: 0.03em;
        }

        .styled-table tr:last-child td {
            border-bottom: none;
        }

        .styled-table tbody tr:hover {
            background: rgba(0, 240, 255, 0.05);
        }

        /* FAQ */
        .faq-list {
            max-width: 800px;
        }

        .faq-item {
            background: var(--card-bg);
            border: 1px solid var(--border-color);
            border-radius: var(--radius-md);
            margin-bottom: 16px;
            overflow: hidden;
            transition: var(--transition);
        }

        .faq-item:hover {
            border-color: rgba(0, 240, 255, 0.3);
        }

        .faq-question {
            padding: 20px 24px;
            cursor: pointer;
            display: flex;
            align-items: center;
            justify-content: space-between;
            gap: 16px;
            user-select: none;
        }

        .faq-question h4 {
            font-size: 1.05rem;
            font-weight: 600;
            color: var(--text-white);
            margin: 0;
        }

        .faq-question i {
            color: var(--accent-cyan);
            font-size: 0.9rem;
            transition: transform 0.3s ease;
            flex-shrink: 0;
        }

        .faq-item.active .faq-question i {
            transform: rotate(180deg);
        }

        .faq-answer {
            max-height: 0;
            overflow: hidden;
            transition: max-height 0.4s ease, padding 0.3s ease;
            padding: 0 24px;
        }

        .faq-item.active .faq-answer {
            max-height: 500px;
            padding: 0 24px 20px;
        }

        .faq-answer p {
            color: var(--text-muted);
            line-height: 1.7;
            margin: 0;
        }

        /* CTA Section */
        .cta-section {
            padding: 80px 0;
            background: linear-gradient(135deg, rgba(0, 82, 255, 0.12) 0%, rgba(0, 240, 255, 0.06) 100%);
            border-top: 1px solid rgba(0, 240, 255, 0.1);
            border-bottom: 1px solid rgba(0, 240, 255, 0.1);
        }

        .cta-content {
            text-align: center;
            max-width: 700px;
            margin: 0 auto;
        }

        .cta-content h2 {
            font-size: 2.2rem;
            font-weight: 800;
            margin-bottom: 16px;
            letter-spacing: -0.02em;
        }

        .cta-content p {
            color: var(--text-silver);
            font-size: 1.1rem;
            line-height: 1.7;
            margin-bottom: 32px;
        }

        /* Footer */
        .site-footer {
            background: var(--secondary-bg);
            border-top: 1px solid var(--border-color);
            padding: 60px 0 0;
            margin-top: 0;
        }

        .footer-grid {
            display: grid;
            grid-template-columns: 2fr 1fr 1fr;
            gap: 48px;
            padding-bottom: 40px;
        }

        .footer-brand h3 {
            font-size: 1.3rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-white);
        }

        .footer-brand p {
            color: var(--text-muted);
            line-height: 1.7;
            font-size: 0.95rem;
        }

        .footer-links h4 {
            font-size: 1rem;
            font-weight: 700;
            margin-bottom: 16px;
            color: var(--text-white);
        }

        .footer-links ul {
            list-style: none;
            padding: 0;
            margin: 0;
        }

        .footer-links ul li {
            margin-bottom: 10px;
        }

        .footer-links ul li a {
            color: var(--text-muted);
            font-size: 0.9rem;
            transition: var(--transition);
        }

        .footer-links ul li a:hover {
            color: var(--accent-cyan);
        }

        .footer-bottom {
            display: flex;
            align-items: center;
            justify-content: space-between;
            padding: 20px 0;
            border-top: 1px solid var(--border-color);
            flex-wrap: wrap;
            gap: 12px;
        }

        .footer-bottom p {
            color: var(--text-muted);
            font-size: 0.85rem;
            margin: 0;
        }

        .badge-18 {
            display: inline-flex;
            align-items: center;
            justify-content: center;
            width: 36px;
            height: 36px;
            background: #D32F2F;
            color: #fff;
            font-weight: 800;
            font-size: 0.8rem;
            border-radius: 50%;
            border: 2px solid #fff;
        }

        .badge-license {
            display: inline-block;
            padding: 6px 12px;
            background: rgba(0, 240, 255, 0.1);
            border: 1px solid rgba(0, 240, 255, 0.3);
            border-radius: 4px;
            color: var(--text-silver);
            font-size: 0.75rem;
            font-weight: 600;
        }

        /* FAB */
        .floating-fab {
            position: fixed;
            left: 16px;
            bottom: 96px;
            z-index: 999;
            width: 56px;
            height: 56px;
            background: rgba(8, 9, 15, 0.8);
            backdrop-filter: blur(16px);
            border: 2px solid transparent;
            background-image: linear-gradient(rgba(8, 9, 15, 0.8), rgba(8, 9, 15, 0.8)), linear-gradient(135deg, #0052FF, #00F0FF);
            background-origin: border-box;
            background-clip: padding-box, border-box;
            border-radius: 50%;
            display: flex;
            align-items: center;
            justify-content: center;
            color: var(--accent-cyan);
            font-size: 1.3rem;
            box-shadow: 0 0 15px rgba(0, 240, 255, 0.5);
            cursor: pointer;
            transition: var(--transition);
            animation: fabBreath 3s ease-in-out infinite;
        }

        .floating-fab:hover {
            transform: scale(1.1);
            opacity: 1;
            box-shadow: 0 0 25px rgba(0, 240, 255, 0.7);
        }

        @keyframes fabBreath {
            0%, 100% {
                opacity: 0.6;
                box-shadow: 0 0 15px rgba(0, 240, 255, 0.3);
            }
            50% {
                opacity: 1;
                box-shadow: 0 0 25px rgba(0, 240, 255, 0.6);
            }
        }

        /* Responsive */
        @media (max-width: 1024px) {
            .hero-content {
                grid-template-columns: 1fr;
                gap: 40px;
            }
            .hero-text h1 {
                font-size: 2.2rem;
            }
            .content-grid {
                grid-template-columns: 1fr;
                gap: 32px;
            }
            .footer-grid {
                grid-template-columns: 1fr 1fr;
                gap: 32px;
            }
        }

        @media (max-width: 768px) {
            .site-header {
                padding: 12px 0;
            }
            .menu-toggle {
                display: block;
            }
            .nav-links {
                position: absolute;
                top: 100%;
                left: 0;
                right: 0;
                background: rgba(8, 9, 15, 0.98);
                backdrop-filter: blur(20px);
                flex-direction: column;
                padding: 16px;
                gap: 4px;
                border-bottom: 1px solid rgba(0, 240, 255, 0.1);
                display: none;
            }
            .nav-links.open {
                display: flex;
            }
            .nav-links a {
                padding: 12px 16px;
                font-size: 1rem;
            }
            .nav-cta {
                gap: 6px;
            }
            .btn-login,
            .btn-signup {
                padding: 8px 14px;
                font-size: 0.8rem;
            }
            .hero-section {
                padding: 110px 0 60px;
            }
            .hero-text h1 {
                font-size: 1.8rem;
            }
            .hero-text .hero-sub {
                font-size: 1rem;
            }
            .hero-image img {
                min-height: 250px;
            }
            .section {
                padding: 40px 0;
            }
            .section-header h2 {
                font-size: 1.6rem;
            }
            .cta-content h2 {
                font-size: 1.6rem;
            }
            .footer-grid {
                grid-template-columns: 1fr;
                gap: 24px;
            }
            .footer-bottom {
                flex-direction: column;
                text-align: center;
                align-items: center;
            }
            .floating-fab {
                width: 48px;
                height: 48px;
                font-size: 1.1rem;
                bottom: 80px;
            }
        }

        @media (max-width: 520px) {
            .container {
                padding: 0 16px;
            }
            .logo {
                font-size: 1rem;
            }
            .btn-login,
            .btn-signup {
                padding: 7px 12px;
                font-size: 0.75rem;
            }
            .hero-text h1 {
                font-size: 1.5rem;
            }
            .btn-primary,
            .btn-secondary {
                padding: 12px 20px;
                font-size: 0.9rem;
            }
            .info-card {
                padding: 20px;
            }
            .section-header h2 {
                font-size: 1.4rem;
            }
        }